What to Do When the Car Battery Has No Power at All?
2 Answers
There are 4 solutions when the car has no power at all: 1. Use another car: Jump-start the car with another vehicle; 2. Use professional tools: Recharge the battery with a dedicated charger and then start the car; 3. Utilize a downhill slope: Start the vehicle by rolling it downhill; 4. Replace the battery: Replace the battery yourself and then start the car. The functions of the battery include the following 5 points: 1. Play a role in starting the car: When starting the engine, the battery supplies power to the starting system, ignition system, etc.; 2. Power the car's electrical equipment: When the engine is stopped or at low idle, it supplies power to the car's electrical equipment; 3. Provide auxiliary support: When the generator's output is insufficient, it can assist in supplying power to the electrical equipment; 4. Mitigate voltage surges: It mitigates voltage surges in the electrical system to protect the car's electronic devices; 5. Storage function: It can store excess electricity generated by the alternator.
Last time my car completely died and even the doors wouldn't open, with no response from the key fob. That's when I realized the battery was completely dead. In such situations, don't force-turn the key to start as it can damage the starter. It's recommended to first call for a jump-start from a rescue vehicle. Remember to securely connect the red cable to the positive terminal and the black cable first to the negative terminal of the rescue vehicle, then to your car's metal frame. After jump-starting, don't turn off the engine immediately; drive for at least half an hour to allow the alternator to recharge the battery. If you notice the battery casing is bulging or leaking, never attempt to jump-start it—replace the battery directly. Jump-starting is only a temporary solution; afterward, you must visit a professional shop for inspection, as the issue might be a faulty alternator regulator causing excessive discharge.
